Frost Dates for NIIGATA, Japan

Elevation: 1 m

Frost Dates

Last Spring Frost (50%) A 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. March 27
First Fall Frost (50%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. December 14

30% Probability

Only a 30% chance of frost remaining by this date. Use these dates for a safer planting window, especially for tender plants sensitive to cold.
Last Spring Frost April 2
First Fall Frost December 10

Hard Freeze (−2°C)

Last Spring Hard Freeze March 10
First Fall Hard Freeze December 19
37.95°N, 139.12°E © OpenStreetMap

Growing Season

262 Days March 27 to December 14

USDA Hardiness Zone

Hardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.
Zone 9a

Avg. annual minimum: −7 to −4°C

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Cfa Humid Subtropical

Hot, humid summers and mild winters with rain year-round. Long growing seasons support a wide variety of vegetables, fruits, and ornamentals. The most common climate in the eastern US.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)
Temperature table
Average monthly temperatures (°C)
Month Avg High Avg Temp Avg Low
January4°2°0°
February4°2°-1°
March8°5°2°
April14°10°6°
May20°16°12°
June23°20°17°
July27°24°21°
August28°25°23°
September25°22°19°
October19°16°13°
November13°10°7°
December7°5°2°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January213
February142
March142
April114
May124
June163
July269
August185
September155
October175
November183
December221

Sunrise / Sunset

Daylight Longest: 14h 38m · Shortest: 9h 22m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January7:11 AM4:49 PM9h 39m
February6:42 AM5:18 PM10h 35m
March6:09 AM5:51 PM11h 42m
April5:30 AM6:30 PM12h 59m
May4:58 AM7:02 PM14h 03m
June4:41 AM7:19 PM14h 37m
July4:48 AM7:12 PM14h 23m
August5:16 AM6:44 PM13h 28m
September5:53 AM6:07 PM12h 14m
October6:30 AM5:30 PM10h 59m
November7:03 AM4:57 PM9h 54m
December7:19 AM4:41 PM9h 23m

Nearby Stations

AIKAWA, Japan March 12 - December 17 WAKAMATSU, Japan April 10 - November 26 SHONAI, Japan April 1 - December 10 YAMAGATA, Japan April 13 - November 18 TAKADA, Japan April 8 - November 27 SHIRAKAWA, Japan April 7 - November 19

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